Track bundled vendor runtime sources

vendor/ComfyUI/alembic_db/versions/0001_assets.py

@@ -0,0 +1,174 @@
+"""
+Initial assets schema
+Revision ID: 0001_assets
+Revises: None
+Create Date: 2025-12-10 00:00:00
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+revision = "0001_assets"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ASSETS: content identity
+    op.create_table(
+        "assets",
+        sa.Column("id", sa.String(length=36), primary_key=True),
+        sa.Column("hash", sa.String(length=256), nullable=True),
+        sa.Column("size_bytes", sa.BigInteger(), nullable=False, server_default="0"),
+        sa.Column("mime_type", sa.String(length=255), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=False), nullable=False),
+        sa.CheckConstraint("size_bytes >= 0", name="ck_assets_size_nonneg"),
+    )
+    op.create_index("uq_assets_hash", "assets", ["hash"], unique=True)
+    op.create_index("ix_assets_mime_type", "assets", ["mime_type"])
+
+    # ASSETS_INFO: user-visible references
+    op.create_table(
+        "assets_info",
+        sa.Column("id", sa.String(length=36), primary_key=True),
+        sa.Column("owner_id", sa.String(length=128), nullable=False, server_default=""),
+        sa.Column("name", sa.String(length=512), nullable=False),
+        sa.Column("asset_id", sa.String(length=36), sa.ForeignKey("assets.id", ondelete="RESTRICT"), nullable=False),
+        sa.Column("preview_id", sa.String(length=36), sa.ForeignKey("assets.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("user_metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=False), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=False), nullable=False),
+        sa.Column("last_access_time", sa.DateTime(timezone=False), nullable=False),
+        sa.UniqueConstraint("asset_id", "owner_id", "name", name="uq_assets_info_asset_owner_name"),
+    )
+    op.create_index("ix_assets_info_owner_id", "assets_info", ["owner_id"])
+    op.create_index("ix_assets_info_asset_id", "assets_info", ["asset_id"])
+    op.create_index("ix_assets_info_name", "assets_info", ["name"])
+    op.create_index("ix_assets_info_created_at", "assets_info", ["created_at"])
+    op.create_index("ix_assets_info_last_access_time", "assets_info", ["last_access_time"])
+    op.create_index("ix_assets_info_owner_name", "assets_info", ["owner_id", "name"])
+
+    # TAGS: normalized tag vocabulary
+    op.create_table(
+        "tags",
+        sa.Column("name", sa.String(length=512), primary_key=True),
+        sa.Column("tag_type", sa.String(length=32), nullable=False, server_default="user"),
+        sa.CheckConstraint("name = lower(name)", name="ck_tags_lowercase"),
+    )
+    op.create_index("ix_tags_tag_type", "tags", ["tag_type"])
+
+    # ASSET_INFO_TAGS: many-to-many for tags on AssetInfo
+    op.create_table(
+        "asset_info_tags",
+        sa.Column("asset_info_id", sa.String(length=36), sa.ForeignKey("assets_info.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("tag_name", sa.String(length=512), sa.ForeignKey("tags.name", ondelete="RESTRICT"), nullable=False),
+        sa.Column("origin", sa.String(length=32), nullable=False, server_default="manual"),
+        sa.Column("added_at", sa.DateTime(timezone=False), nullable=False),
+        sa.PrimaryKeyConstraint("asset_info_id", "tag_name", name="pk_asset_info_tags"),
+    )
+    op.create_index("ix_asset_info_tags_tag_name", "asset_info_tags", ["tag_name"])
+    op.create_index("ix_asset_info_tags_asset_info_id", "asset_info_tags", ["asset_info_id"])
+
+    # ASSET_CACHE_STATE: N:1 local cache rows per Asset
+    op.create_table(
+        "asset_cache_state",
+        sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
+        sa.Column("asset_id", sa.String(length=36), sa.ForeignKey("assets.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("file_path", sa.Text(), nullable=False),  # absolute local path to cached file
+        sa.Column("mtime_ns", sa.BigInteger(), nullable=True),
+        sa.Column("needs_verify", sa.Boolean(), nullable=False, server_default=sa.text("false")),
+        sa.CheckConstraint("(mtime_ns IS NULL) OR (mtime_ns >= 0)", name="ck_acs_mtime_nonneg"),
+        sa.UniqueConstraint("file_path", name="uq_asset_cache_state_file_path"),
+    )
+    op.create_index("ix_asset_cache_state_file_path", "asset_cache_state", ["file_path"])
+    op.create_index("ix_asset_cache_state_asset_id", "asset_cache_state", ["asset_id"])
+
+    # ASSET_INFO_META: typed KV projection of user_metadata for filtering/sorting
+    op.create_table(
+        "asset_info_meta",
+        sa.Column("asset_info_id", sa.String(length=36), sa.ForeignKey("assets_info.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("key", sa.String(length=256), nullable=False),
+        sa.Column("ordinal", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("val_str", sa.String(length=2048), nullable=True),
+        sa.Column("val_num", sa.Numeric(38, 10), nullable=True),
+        sa.Column("val_bool", sa.Boolean(), nullable=True),
+        sa.Column("val_json", sa.JSON(), nullable=True),
+        sa.PrimaryKeyConstraint("asset_info_id", "key", "ordinal", name="pk_asset_info_meta"),
+    )
+    op.create_index("ix_asset_info_meta_key", "asset_info_meta", ["key"])
+    op.create_index("ix_asset_info_meta_key_val_str", "asset_info_meta", ["key", "val_str"])
+    op.create_index("ix_asset_info_meta_key_val_num", "asset_info_meta", ["key", "val_num"])
+    op.create_index("ix_asset_info_meta_key_val_bool", "asset_info_meta", ["key", "val_bool"])
+
+    # Tags vocabulary
+    tags_table = sa.table(
+        "tags",
+        sa.column("name", sa.String(length=512)),
+        sa.column("tag_type", sa.String()),
+    )
+    op.bulk_insert(
+        tags_table,
+        [
+            {"name": "models", "tag_type": "system"},
+            {"name": "input", "tag_type": "system"},
+            {"name": "output", "tag_type": "system"},
+
+            {"name": "configs", "tag_type": "system"},
+            {"name": "checkpoints", "tag_type": "system"},
+            {"name": "loras", "tag_type": "system"},
+            {"name": "vae", "tag_type": "system"},
+            {"name": "text_encoders", "tag_type": "system"},
+            {"name": "diffusion_models", "tag_type": "system"},
+            {"name": "clip_vision", "tag_type": "system"},
+            {"name": "style_models", "tag_type": "system"},
+            {"name": "embeddings", "tag_type": "system"},
+            {"name": "diffusers", "tag_type": "system"},
+            {"name": "vae_approx", "tag_type": "system"},
+            {"name": "controlnet", "tag_type": "system"},
+            {"name": "gligen", "tag_type": "system"},
+            {"name": "upscale_models", "tag_type": "system"},
+            {"name": "hypernetworks", "tag_type": "system"},
+            {"name": "photomaker", "tag_type": "system"},
+            {"name": "classifiers", "tag_type": "system"},
+
+            {"name": "encoder", "tag_type": "system"},
+            {"name": "decoder", "tag_type": "system"},
+
+            {"name": "missing", "tag_type": "system"},
+            {"name": "rescan", "tag_type": "system"},
+        ],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_asset_info_meta_key_val_bool", table_name="asset_info_meta")
+    op.drop_index("ix_asset_info_meta_key_val_num", table_name="asset_info_meta")
+    op.drop_index("ix_asset_info_meta_key_val_str", table_name="asset_info_meta")
+    op.drop_index("ix_asset_info_meta_key", table_name="asset_info_meta")
+    op.drop_table("asset_info_meta")
+
+    op.drop_index("ix_asset_cache_state_asset_id", table_name="asset_cache_state")
+    op.drop_index("ix_asset_cache_state_file_path", table_name="asset_cache_state")
+    op.drop_constraint("uq_asset_cache_state_file_path", table_name="asset_cache_state")
+    op.drop_table("asset_cache_state")
+
+    op.drop_index("ix_asset_info_tags_asset_info_id", table_name="asset_info_tags")
+    op.drop_index("ix_asset_info_tags_tag_name", table_name="asset_info_tags")
+    op.drop_table("asset_info_tags")
+
+    op.drop_index("ix_tags_tag_type", table_name="tags")
+    op.drop_table("tags")
+
+    op.drop_constraint("uq_assets_info_asset_owner_name", table_name="assets_info")
+    op.drop_index("ix_assets_info_owner_name", table_name="assets_info")
+    op.drop_index("ix_assets_info_last_access_time", table_name="assets_info")
+    op.drop_index("ix_assets_info_created_at", table_name="assets_info")
+    op.drop_index("ix_assets_info_name", table_name="assets_info")
+    op.drop_index("ix_assets_info_asset_id", table_name="assets_info")
+    op.drop_index("ix_assets_info_owner_id", table_name="assets_info")
+    op.drop_table("assets_info")
+
+    op.drop_index("uq_assets_hash", table_name="assets")
+    op.drop_index("ix_assets_mime_type", table_name="assets")
+    op.drop_table("assets")

vendor/ComfyUI/alembic_db/versions/0002_merge_to_asset_references.py

@@ -0,0 +1,267 @@
+"""
+Merge AssetInfo and AssetCacheState into unified asset_references table.
+
+This migration drops old tables and creates the new unified schema.
+All existing data is discarded.
+
+Revision ID: 0002_merge_to_asset_references
+Revises: 0001_assets
+Create Date: 2025-02-11
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+revision = "0002_merge_to_asset_references"
+down_revision = "0001_assets"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # Drop old tables (order matters due to FK constraints)
+    op.drop_index("ix_asset_info_meta_key_val_bool", table_name="asset_info_meta")
+    op.drop_index("ix_asset_info_meta_key_val_num", table_name="asset_info_meta")
+    op.drop_index("ix_asset_info_meta_key_val_str", table_name="asset_info_meta")
+    op.drop_index("ix_asset_info_meta_key", table_name="asset_info_meta")
+    op.drop_table("asset_info_meta")
+
+    op.drop_index("ix_asset_info_tags_asset_info_id", table_name="asset_info_tags")
+    op.drop_index("ix_asset_info_tags_tag_name", table_name="asset_info_tags")
+    op.drop_table("asset_info_tags")
+
+    op.drop_index("ix_asset_cache_state_asset_id", table_name="asset_cache_state")
+    op.drop_index("ix_asset_cache_state_file_path", table_name="asset_cache_state")
+    op.drop_table("asset_cache_state")
+
+    op.drop_index("ix_assets_info_owner_name", table_name="assets_info")
+    op.drop_index("ix_assets_info_last_access_time", table_name="assets_info")
+    op.drop_index("ix_assets_info_created_at", table_name="assets_info")
+    op.drop_index("ix_assets_info_name", table_name="assets_info")
+    op.drop_index("ix_assets_info_asset_id", table_name="assets_info")
+    op.drop_index("ix_assets_info_owner_id", table_name="assets_info")
+    op.drop_table("assets_info")
+
+    # Truncate assets table (cascades handled by dropping dependent tables first)
+    op.execute("DELETE FROM assets")
+
+    # Create asset_references table
+    op.create_table(
+        "asset_references",
+        sa.Column("id", sa.String(length=36), primary_key=True),
+        sa.Column(
+            "asset_id",
+            sa.String(length=36),
+            sa.ForeignKey("assets.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column("file_path", sa.Text(), nullable=True),
+        sa.Column("mtime_ns", sa.BigInteger(), nullable=True),
+        sa.Column(
+            "needs_verify",
+            sa.Boolean(),
+            nullable=False,
+            server_default=sa.text("false"),
+        ),
+        sa.Column(
+            "is_missing", sa.Boolean(), nullable=False, server_default=sa.text("false")
+        ),
+        sa.Column("enrichment_level", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("owner_id", sa.String(length=128), nullable=False, server_default=""),
+        sa.Column("name", sa.String(length=512), nullable=False),
+        sa.Column(
+            "preview_id",
+            sa.String(length=36),
+            sa.ForeignKey("assets.id", ondelete="SET NULL"),
+            nullable=True,
+        ),
+        sa.Column("user_metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=False), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=False), nullable=False),
+        sa.Column("last_access_time", sa.DateTime(timezone=False), nullable=False),
+        sa.Column("deleted_at", sa.DateTime(timezone=False), nullable=True),
+        sa.CheckConstraint(
+            "(mtime_ns IS NULL) OR (mtime_ns >= 0)", name="ck_ar_mtime_nonneg"
+        ),
+        sa.CheckConstraint(
+            "enrichment_level >= 0 AND enrichment_level <= 2",
+            name="ck_ar_enrichment_level_range",
+        ),
+    )
+    op.create_index(
+        "uq_asset_references_file_path", "asset_references", ["file_path"], unique=True
+    )
+    op.create_index("ix_asset_references_asset_id", "asset_references", ["asset_id"])
+    op.create_index("ix_asset_references_owner_id", "asset_references", ["owner_id"])
+    op.create_index("ix_asset_references_name", "asset_references", ["name"])
+    op.create_index("ix_asset_references_is_missing", "asset_references", ["is_missing"])
+    op.create_index(
+        "ix_asset_references_enrichment_level", "asset_references", ["enrichment_level"]
+    )
+    op.create_index("ix_asset_references_created_at", "asset_references", ["created_at"])
+    op.create_index(
+        "ix_asset_references_last_access_time", "asset_references", ["last_access_time"]
+    )
+    op.create_index(
+        "ix_asset_references_owner_name", "asset_references", ["owner_id", "name"]
+    )
+    op.create_index("ix_asset_references_deleted_at", "asset_references", ["deleted_at"])
+
+    # Create asset_reference_tags table
+    op.create_table(
+        "asset_reference_tags",
+        sa.Column(
+            "asset_reference_id",
+            sa.String(length=36),
+            sa.ForeignKey("asset_references.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column(
+            "tag_name",
+            sa.String(length=512),
+            sa.ForeignKey("tags.name", ondelete="RESTRICT"),
+            nullable=False,
+        ),
+        sa.Column(
+            "origin", sa.String(length=32), nullable=False, server_default="manual"
+        ),
+        sa.Column("added_at", sa.DateTime(timezone=False), nullable=False),
+        sa.PrimaryKeyConstraint(
+            "asset_reference_id", "tag_name", name="pk_asset_reference_tags"
+        ),
+    )
+    op.create_index(
+        "ix_asset_reference_tags_tag_name", "asset_reference_tags", ["tag_name"]
+    )
+    op.create_index(
+        "ix_asset_reference_tags_asset_reference_id",
+        "asset_reference_tags",
+        ["asset_reference_id"],
+    )
+
+    # Create asset_reference_meta table
+    op.create_table(
+        "asset_reference_meta",
+        sa.Column(
+            "asset_reference_id",
+            sa.String(length=36),
+            sa.ForeignKey("asset_references.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column("key", sa.String(length=256), nullable=False),
+        sa.Column("ordinal", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("val_str", sa.String(length=2048), nullable=True),
+        sa.Column("val_num", sa.Numeric(38, 10), nullable=True),
+        sa.Column("val_bool", sa.Boolean(), nullable=True),
+        sa.Column("val_json", sa.JSON(), nullable=True),
+        sa.PrimaryKeyConstraint(
+            "asset_reference_id", "key", "ordinal", name="pk_asset_reference_meta"
+        ),
+    )
+    op.create_index("ix_asset_reference_meta_key", "asset_reference_meta", ["key"])
+    op.create_index(
+        "ix_asset_reference_meta_key_val_str", "asset_reference_meta", ["key", "val_str"]
+    )
+    op.create_index(
+        "ix_asset_reference_meta_key_val_num", "asset_reference_meta", ["key", "val_num"]
+    )
+    op.create_index(
+        "ix_asset_reference_meta_key_val_bool",
+        "asset_reference_meta",
+        ["key", "val_bool"],
+    )
+
+
+def downgrade() -> None:
+    """Reverse 0002_merge_to_asset_references: drop new tables, recreate old schema.
+
+    NOTE: Data is not recoverable. The upgrade discards all rows from the old
+    tables and truncates assets. After downgrade the old schema will be empty.
+    A filesystem rescan will repopulate data once the older code is running.
+    """
+    # Drop new tables (order matters due to FK constraints)
+    op.drop_index("ix_asset_reference_meta_key_val_bool", table_name="asset_reference_meta")
+    op.drop_index("ix_asset_reference_meta_key_val_num", table_name="asset_reference_meta")
+    op.drop_index("ix_asset_reference_meta_key_val_str", table_name="asset_reference_meta")
+    op.drop_index("ix_asset_reference_meta_key", table_name="asset_reference_meta")
+    op.drop_table("asset_reference_meta")
+
+    op.drop_index("ix_asset_reference_tags_asset_reference_id", table_name="asset_reference_tags")
+    op.drop_index("ix_asset_reference_tags_tag_name", table_name="asset_reference_tags")
+    op.drop_table("asset_reference_tags")
+
+    op.drop_index("ix_asset_references_deleted_at", table_name="asset_references")
+    op.drop_index("ix_asset_references_owner_name", table_name="asset_references")
+    op.drop_index("ix_asset_references_last_access_time", table_name="asset_references")
+    op.drop_index("ix_asset_references_created_at", table_name="asset_references")
+    op.drop_index("ix_asset_references_enrichment_level", table_name="asset_references")
+    op.drop_index("ix_asset_references_is_missing", table_name="asset_references")
+    op.drop_index("ix_asset_references_name", table_name="asset_references")
+    op.drop_index("ix_asset_references_owner_id", table_name="asset_references")
+    op.drop_index("ix_asset_references_asset_id", table_name="asset_references")
+    op.drop_index("uq_asset_references_file_path", table_name="asset_references")
+    op.drop_table("asset_references")
+
+    # Truncate assets (upgrade deleted all rows; downgrade starts fresh too)
+    op.execute("DELETE FROM assets")
+
+    # Recreate old tables from 0001_assets schema
+    op.create_table(
+        "assets_info",
+        sa.Column("id", sa.String(length=36), primary_key=True),
+        sa.Column("owner_id", sa.String(length=128), nullable=False, server_default=""),
+        sa.Column("name", sa.String(length=512), nullable=False),
+        sa.Column("asset_id", sa.String(length=36), sa.ForeignKey("assets.id", ondelete="RESTRICT"), nullable=False),
+        sa.Column("preview_id", sa.String(length=36), sa.ForeignKey("assets.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("user_metadata", sa.JSON(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=False), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=False), nullable=False),
+        sa.Column("last_access_time", sa.DateTime(timezone=False), nullable=False),
+        sa.UniqueConstraint("asset_id", "owner_id", "name", name="uq_assets_info_asset_owner_name"),
+    )
+    op.create_index("ix_assets_info_owner_id", "assets_info", ["owner_id"])
+    op.create_index("ix_assets_info_asset_id", "assets_info", ["asset_id"])
+    op.create_index("ix_assets_info_name", "assets_info", ["name"])
+    op.create_index("ix_assets_info_created_at", "assets_info", ["created_at"])
+    op.create_index("ix_assets_info_last_access_time", "assets_info", ["last_access_time"])
+    op.create_index("ix_assets_info_owner_name", "assets_info", ["owner_id", "name"])
+
+    op.create_table(
+        "asset_cache_state",
+        sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
+        sa.Column("asset_id", sa.String(length=36), sa.ForeignKey("assets.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("file_path", sa.Text(), nullable=False),
+        sa.Column("mtime_ns", sa.BigInteger(), nullable=True),
+        sa.Column("needs_verify", sa.Boolean(), nullable=False, server_default=sa.text("false")),
+        sa.CheckConstraint("(mtime_ns IS NULL) OR (mtime_ns >= 0)", name="ck_acs_mtime_nonneg"),
+        sa.UniqueConstraint("file_path", name="uq_asset_cache_state_file_path"),
+    )
+    op.create_index("ix_asset_cache_state_file_path", "asset_cache_state", ["file_path"])
+    op.create_index("ix_asset_cache_state_asset_id", "asset_cache_state", ["asset_id"])
+
+    op.create_table(
+        "asset_info_tags",
+        sa.Column("asset_info_id", sa.String(length=36), sa.ForeignKey("assets_info.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("tag_name", sa.String(length=512), sa.ForeignKey("tags.name", ondelete="RESTRICT"), nullable=False),
+        sa.Column("origin", sa.String(length=32), nullable=False, server_default="manual"),
+        sa.Column("added_at", sa.DateTime(timezone=False), nullable=False),
+        sa.PrimaryKeyConstraint("asset_info_id", "tag_name", name="pk_asset_info_tags"),
+    )
+    op.create_index("ix_asset_info_tags_tag_name", "asset_info_tags", ["tag_name"])
+    op.create_index("ix_asset_info_tags_asset_info_id", "asset_info_tags", ["asset_info_id"])
+
+    op.create_table(
+        "asset_info_meta",
+        sa.Column("asset_info_id", sa.String(length=36), sa.ForeignKey("assets_info.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("key", sa.String(length=256), nullable=False),
+        sa.Column("ordinal", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("val_str", sa.String(length=2048), nullable=True),
+        sa.Column("val_num", sa.Numeric(38, 10), nullable=True),
+        sa.Column("val_bool", sa.Boolean(), nullable=True),
+        sa.Column("val_json", sa.JSON(), nullable=True),
+        sa.PrimaryKeyConstraint("asset_info_id", "key", "ordinal", name="pk_asset_info_meta"),
+    )
+    op.create_index("ix_asset_info_meta_key", "asset_info_meta", ["key"])
+    op.create_index("ix_asset_info_meta_key_val_str", "asset_info_meta", ["key", "val_str"])
+    op.create_index("ix_asset_info_meta_key_val_num", "asset_info_meta", ["key", "val_num"])
+    op.create_index("ix_asset_info_meta_key_val_bool", "asset_info_meta", ["key", "val_bool"])

vendor/ComfyUI/alembic_db/versions/0003_add_metadata_job_id.py

@@ -0,0 +1,98 @@
+"""
+Add system_metadata and job_id columns to asset_references.
+Change preview_id FK from assets.id to asset_references.id.
+
+Revision ID: 0003_add_metadata_job_id
+Revises: 0002_merge_to_asset_references
+Create Date: 2026-03-09
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+from app.database.models import NAMING_CONVENTION
+
+revision = "0003_add_metadata_job_id"
+down_revision = "0002_merge_to_asset_references"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    with op.batch_alter_table("asset_references") as batch_op:
+        batch_op.add_column(
+            sa.Column("system_metadata", sa.JSON(), nullable=True)
+        )
+        batch_op.add_column(
+            sa.Column("job_id", sa.String(length=36), nullable=True)
+        )
+
+    # Change preview_id FK from assets.id to asset_references.id (self-ref).
+    # Existing values are asset-content IDs that won't match reference IDs,
+    # so null them out first.
+    op.execute("UPDATE asset_references SET preview_id = NULL WHERE preview_id IS NOT NULL")
+    with op.batch_alter_table(
+        "asset_references", naming_convention=NAMING_CONVENTION
+    ) as batch_op:
+        batch_op.drop_constraint(
+            "fk_asset_references_preview_id_assets", type_="foreignkey"
+        )
+        batch_op.create_foreign_key(
+            "fk_asset_references_preview_id_asset_references",
+            "asset_references",
+            ["preview_id"],
+            ["id"],
+            ondelete="SET NULL",
+        )
+        batch_op.create_index(
+            "ix_asset_references_preview_id", ["preview_id"]
+        )
+
+    # Purge any all-null meta rows before adding the constraint
+    op.execute(
+        "DELETE FROM asset_reference_meta"
+        " WHERE val_str IS NULL AND val_num IS NULL AND val_bool IS NULL AND val_json IS NULL"
+    )
+    with op.batch_alter_table("asset_reference_meta") as batch_op:
+        batch_op.create_check_constraint(
+            "ck_asset_reference_meta_has_value",
+            "val_str IS NOT NULL OR val_num IS NOT NULL OR val_bool IS NOT NULL OR val_json IS NOT NULL",
+        )
+
+
+def downgrade() -> None:
+    # SQLite doesn't reflect CHECK constraints, so we must declare it
+    # explicitly via table_args for the batch recreate to find it.
+    # Use the fully-rendered constraint name to avoid the naming convention
+    # doubling the prefix.
+    with op.batch_alter_table(
+        "asset_reference_meta",
+        table_args=[
+            sa.CheckConstraint(
+                "val_str IS NOT NULL OR val_num IS NOT NULL OR val_bool IS NOT NULL OR val_json IS NOT NULL",
+                name="ck_asset_reference_meta_has_value",
+            ),
+        ],
+    ) as batch_op:
+        batch_op.drop_constraint(
+            "ck_asset_reference_meta_has_value", type_="check"
+        )
+
+    with op.batch_alter_table(
+        "asset_references", naming_convention=NAMING_CONVENTION
+    ) as batch_op:
+        batch_op.drop_index("ix_asset_references_preview_id")
+        batch_op.drop_constraint(
+            "fk_asset_references_preview_id_asset_references", type_="foreignkey"
+        )
+        batch_op.create_foreign_key(
+            "fk_asset_references_preview_id_assets",
+            "assets",
+            ["preview_id"],
+            ["id"],
+            ondelete="SET NULL",
+        )
+
+    with op.batch_alter_table("asset_references") as batch_op:
+        batch_op.drop_column("job_id")
+        batch_op.drop_column("system_metadata")

vendor/ComfyUI/alembic_db/versions/0004_drop_tag_type.py

@@ -0,0 +1,39 @@
+"""
+Drop the vestigial tags.tag_type column.
+
+tag_type was always "user" in practice — no code path ever set it to anything
+else (no system/seeded classification was ever wired up) and nothing queried it.
+The column, its index (ix_tags_tag_type), and the corresponding API field were
+dead weight, so they are removed.
+
+Revision ID: 0004_drop_tag_type
+Revises: 0003_add_metadata_job_id
+Create Date: 2026-06-03
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+revision = "0004_drop_tag_type"
+down_revision = "0003_add_metadata_job_id"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    with op.batch_alter_table("tags") as batch_op:
+        batch_op.drop_index("ix_tags_tag_type")
+        batch_op.drop_column("tag_type")
+
+
+def downgrade() -> None:
+    with op.batch_alter_table("tags") as batch_op:
+        batch_op.add_column(
+            sa.Column(
+                "tag_type",
+                sa.String(length=32),
+                nullable=False,
+                server_default="user",
+            )
+        )
+        batch_op.create_index("ix_tags_tag_type", ["tag_type"])